https://www.youtube.com/watch?v=IG7yGbP9OLk&t=892s.
I watched a video on Youtube and I noticed the video is deinterlaced. It looks very smooth and it shows colour pixels leaving behind the movement. I'm looking for this setting. If anyone can tell what type of deinterlacing is I would be appreciated. I am using AviSynth and it has many deinterlacing options. I am wondering if AviSynth has that setting.

Yadif is a little different than most AviSynth filters. It won't autoload when in the plugins folder. You have to use a special import in your script:

Code:

Load_Stdcall_plugin("C:\path\to\yadif.dll")

On my computer AviSynth is installed in: "C:\Program Files (x86)\AviSynth\". I put yadif.dll in AviSynth's plugins folder (even though it doesn't autoload on its own). Then I use an avsi script in the plugins folder to autoload yadif.dll so I don't have to remember to manually include it in my script. The Yadif.avsi script looks like:

I borrowed this idea from someone for loading the two C plugins I use regularly. They're not in the standard Avisynth plugins folder, so doing it this way means if I move or delete them, leaving the avsi script in the auto-loading folder won't prevent Avisynth from running.

I need another help with deinterlacing. QTGMC or Yadif do not really help with some interlaced videos, but separate fields does help removing undesired horizontal line artifacts. However, the video gets shaky when I use that deinterlace. Is there any AviSynth filter that stabilises it?

The first few seconds with the Playstation logo don't have the field swap. So don't use SwapFields() on that section if you prefer. Also, it has interlaced frames encoded as progressive so there will be some chroma blending artifacts. And it has duplicate frames here and there where the capture device dropped a frame and inserted a duplicate.

Nice catch poisondeathray, but I disabled deinterlace while processing it, so it looks exactly the same as the original one.

But why would you do that when you were asked specifically for an untouched sample? 10 seconds is all that's needed. A short scene of someone walking or some other sort of movement. You're the one asking for help. If you want help, then provide what's asked for.